Connecting – today and beyond
HUBER+SUHNER logo in blue

How to deliver robust fiber performance for modern rail systems through the Q-ODC 100Gbit/s connector

Written by 

Carsten Dieckmann

Product Manager, FO Connectivity

Across the globe, rail operators already reliant on high-capacity networks to support real-time operational data and passenger-facing systems are rapidly facing new pressures. The rolling stock market segment is experiencing a sharp rise in data demand and a growing shift toward higher-performance Fiber Optic (FO) connectivity, pushing operators to upgrade their legacy cabling and connectors. As a result, solutions that reliably deliver 100Gbit/s performance in harsh, space constrained environments are in high demand.

How are operational pressures reshaping onboard connectivity?

In many ways, rail operators have become a victim of their own success: condition-based monitoring systems have reduced unplanned maintenance costs by 20 %, but the increased use of these has driven the need for high-bandwidth, low-latency data flows across the network. Meanwhile, ETCS deployments have achieved a 30 % reduction in signal-related incidents, further intensifying the need for fast, reliable FO links. 


This evolution is happening alongside stricter environmental and safety expectations across global networks, often shaped by national and regional regulatory frameworks laid out by the European Railway Agency and other organisations. 


As such, the bar has been raised for onboard components like connectors, which are expected to withstand any exposure to vibrations, moisture, dust or long-term mechanical stresses. Fiber connectors in particular must offer watertight sealing, intuitive handling and long-term stability to reduce or avoid costly downtime.  

High speed train highlighting inter-vehicle jumper solutions

How does the New Gen Q-ODC 100Gbit/s overcome rolling stock challenges? 

HS FO Q-ODC Connector Family 2

Essentially, rail operators now need components that can keep pace, are robust, and are simple to deploy and build for long-term reliability. This is why a new, purpose-built Q-ODC 100Gbit/s connector has been launched by HUBER+SUHNER. 


An enhanced evolution of a proven design which has already deployed more than 3.5 million times across the global rolling stock market, this next-generation connector forms part of the trusted Q-ODC-2 family of solutions. It delivers reliable 100Gbit/s performance, improved handling and significantly upgraded environmental protections, including water protection and IP sealing, to help overcome the growing demands. 


The New Gen Q-ODC 100Gbit/s has been engineered precisely to meet the data rates and fiber connectivity challenges operators now face. This is especially true for mission-critical onboard applications such as backbone networks, FRMCS, Passenger Information Systems (PIS) and Fleet Information Systems (FIS), all of which will become vital cogs in the rail networks of the future.

What are the benefits of the New Gen Q-ODC 100Gbit/s?

Suitable for harsh railway environments, the connector has an extended IP68 rating – 30 days at 3m depth – and is compliant with EN45545-2 HL3, meaning it is built for long-term resistance. It also enables the straightforward deployment of 100Gbit/s links to ensure that operators can upgrade their bandwidth without complexity or compromise. 


The New Gen Q-ODC 100Gbit/s also builds on the designs of previous solutions within the portfolio, offering improved handling and user-friendliness through its redesigned rubber boot and intuitive quick-lock mechanism. Resultingly, the installation of these solutions within trains has been made faster and more secure.

Is the New Gen Q‑ODC 100Gbit/s connector backwards compatible?

The New Gen Q‑ODC 100Gbit/s is purpose‑built for the rolling stock market, particularly for connections to switches and inter‑car jumpers embedded within heavy‑duty connector shells. For those using older systems, the Q-ODC solution maintains full backward compatibility, providing a stable, reliable performance which can last for the next 30 years. With FRMCS over the horizon, operators can trust these solutions will remain future-proofed. 


As the rail sector continues to demand more data, fiber and performance, the solution positions operators to meet these future demands with confidence. With unmatched robustness, long‑term stability and user‑friendly design, the New Gen Q‑ODC 100Gbit/s sets a new benchmark for onboard fiber connectivity. It delivers the performance rail operators need today… and the resilience they’ll rely on for decades.

Get in touch

Do you have questions?

languageLocations worldwide
See locations